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Brownfield sites in Wisconsin
EPA lists 1,271 brownfield sites in Wisconsin. Grant recipients report them. Here are the counts, EPA's flags and every county.
EPA flags
| EPA flag | Sites |
|---|---|
| Ready for reuse | 263 |
| Assessment | 936 |
| Cleanup | 93 |
| Targeted assessment | 95 |
| State or tribal program | 57 |
| Multipurpose grant | 13 |
| Area-wide planning | 14 |
A site can carry more than one flag. The grant flags show which kinds of EPA brownfield funding a site is listed under.
Counties with 8 or more sites
| County | Sites | Ready for reuse |
|---|---|---|
| Ashland County | 18 | 8 |
| Brown County | 108 | 48 |
| Calumet County | 25 | 2 |
| Crawford County | 13 | 6 |
| Dane County | 57 | 23 |
| Eau Claire County | 18 | 2 |
| Fond Du Lac County | 13 | 9 |
| Kenosha County | 29 | 1 |
| Manitowoc County | 67 | 6 |
| Marathon County | 27 | 1 |
| Marinette County | 31 | 14 |
| Milwaukee County | 313 | 60 |
| Outagamie County | 30 | 7 |
| Portage County | 20 | 0 |
| Racine County | 77 | 5 |
| Rock County | 15 | 1 |
| Sauk County | 11 | 3 |
| Sheboygan County | 42 | 2 |
| Vilas County | 13 | 3 |
| Walworth County | 21 | 1 |
| Washington County | 52 | 16 |
| Waukesha County | 12 | 3 |
| Winnebago County | 124 | 23 |
| Wood County | 37 | 8 |
Counties with fewer than 8 sites
These counties have no page of their own. The number is their site count.
- Adams County (1)
- Barron County (3)
- Bayfield County (1)
- Burnett County (4)
- Chippewa County (3)
- Clark County (1)
- Columbia County (2)
- Dodge County (3)
- Door County (3)
- Douglas County (4)
- Florence County (1)
- Forest County (1)
- Grand Traverse County (1)
- Grant County (3)
- Green County (1)
- Green Lake County (3)
- Hamilton County (1)
- Iron County (1)
- Jefferson County (6)
- Juneau County (3)
- Kewaunee County (1)
- La Crosse County (6)
- Lacrosse County (1)
- Lafayette County (1)
- Langlade County (2)
- Lincoln County (7)
- Menominee County (7)
- Milwauke County (1)
- Monroe County (2)
- Oconto County (3)
- Oneida County (1)
- Ozaukee County (3)
- Polk County (4)
- Price County (2)
- Rusk County (1)
- Shawano County (1)
- St. Croix County (2)
- Taylor County (1)
- Trempealeau County (1)
- Vernon County (1)
- Washburn County (1)
- Waupaca County (1)
- Waushara County (2)
To see each site in Wisconsin on a map, use the Cleanups in My Community map, on EPA's site.
What this data holds
- Acreage isn't in EPA's national data, so we don't show site sizes.
- We hold no flood data for these sites.
- We show the city and county, not street addresses.
- Zoning: Check zoning with the city.
- Grant recipients report these sites to EPA. A flag is EPA's record, not a site visit.
Go further with a paid plan
A paid plan runs site reports and area scans on the sites you pick. How much we read varies by state.
Starter: US$39 a month for 100 credits. Run full site reports, area scans and letter drops.
Or create a free account first. No card needed.
US EPA data, as of 18 Oct 2026, reported by grant recipients. Not endorsed by EPA. Not legal or environmental advice; confirm with the state or EPA region.